Brompton x CHPT3 4th Edition

Color: Gray
Handlebars: Low
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Brompton tire
Schwalbe One Tanwall
For optimal grip and maximum style. With weight-saving Tubilito innertubes.
Back wheel of Brompton bike
Compact 4 speed gearing system
The Brompton 4-speed patent pending system for rapid urban acceleration and nimble climbing ability.
Fizik saddle
fi'zi:k Terra Argo X5 Saddle
A short nose saddle with a ride-compliant carbon-reinforced nylon shell and S-Alloy rails.
Close up of Brompton bike frame and fitted pouch
Brompton x CHPT3 Frame Pouch
Each bike comes with a limited-edition CHPT3 x Brompton Frame Pouch Bag.
Brompton handlebars
Ergon GE1 Evo slim grips
A minimalist Brompton P Line, packed with high-performance details.
Back view of Brompton bike
Titanium forks and rear triangle
Handbuilt titanium and steel frame. More than 3.3lbs lighter than the original bike.

Made for Speed

Handbuilt titanium and steel frame. All the practicality of a Brompton in a lightweight and performance oriented form. More than 3.3lbs lighter than the original bike.
Woman holding up CHPT3 Brompton bike

fi'zi:k Terra Argo X5 Saddle

We chose this gravel-specific saddle for the superb vibration absorption, and the short nose. This gives you a stable, planted position. You can shift further forward too – the ergonomic design minimizes pressure on any sensitive parts. Cleverly thought-out drainage channels make it brilliant for wet-weather riding.
Close up of Brompton chpt3 bike

Superlight, compact gearing system

The Brompton 4-speed system* for rapid urban acceleration and nimble climbing ability. With a 60-gram derailleur, meticulously engineered to fit inside the narrow fold.
Two men riding brompton bikes

A fast and light wheelset

Designed and tested to stand up to daily use in the city, in all weathers. On superb tan-walled Schwalbe One tires for optimal grip and maximum style. With weight-saving Tubilito inner tubes.
Man with CHPT3 Brompton bike

Brompton x CHPT3 Frame Pouch Bag

Your CHPT3 comes with a limited-edition Frame Pouch Bag. It’s inspired by how the community use their Brompton x CHPT3 bikes - moving fast around the city, racing, heading out on long weekend rides. It’s perfectly sized for a spare tube and tools. Just like the bike, it’s minimalist, practical and brilliantly durable. In abrasion resistant Hypalon fabric with a welded, waterproof construction.
CHPT3 Brompton Bike
Brompton x CHPT3 4th Edition

The Brompton x CHPT3 4th Edition means business. Providing the power you need to transform every moment of your life into a positive experience, the handbuilt beauty perfectly combines style and expert engineering.

Presenting a sturdy yet lightweight steel frame, this model is more than 3.3 lbs lighter than the original bike. This means you can get around easily and still experience the smooth riding style that Brompton is adored for. The durable 4-speed system gears which provide enhanced control will aid you in your city exploration. Offering everything from pace-filled acceleration to a stable, planted position on the saddle, you can keep your eyes are firmly fixed on the horizon of opportunities that await you.

This bike is also designed for maximum usability and performance. To ensure that no weather or location is match for this cycling masterpiece, the power coating is weather resistant and ideal for all conditions. Furthermore, additional features, including the trendy limited edition Frame Pouch Bag, long-lasting inner tubes, and reactive brakes, make for a safer riding experience. Comfort is also guaranteed thanks to the robust suspension and vibration-absorbing seat.

Style is also something that you cannot miss with this statement bike. Every detail has been hand-crafted by the London Brompton team. With finishing touches such as the stitched saddle and 3-dimensional coating, you will surely be amazed by every element of this go-getter biking masterpiece.

Designed to withstand rough rides and provide a smooth cycling session, the Brompton x CHPT3 4th Edition will add a new sense of optimism and excitement to everyday life.

4 Speed
From 20.9 lb
Titanium and Steel
From 20.9 lb
4 Speed (Urban)
Titanium and Steel
Folded Size
25.3' H' x 23'' W x 10.6'' D
Main Frame
Precision drawn heat-treated steel tubing with hand brazing and selected auto-brazed joints
High-shine Gloss Winter Sky and textured Concrete Gray with Fire Red and Aqua Teal accents
Rear Frame
Superlight Advance rear frame made from Titanium with a replaceable hanger, redesigned suspension block and new 54mm roller wheels
Superlight Titanium fork with a threaded headset
Ergon GE1 Evo Slim – A premium ergonomic, rider-oriented grip with more comfort, precision and performance
Extended, Black (35")
Fizik Terra Argo
Machined aluminium seat clamp and rear frame clip in anodised matt black finish
Hinge Clamps
Machined aluminium hinge clamp levers and plates anodised matt black finish
Brompton Folding left hand and non-folding right-hand pedals
Brompton 4 speed drivetrain, 163% range
Number of gears
4 Speed - Urban
Advance chain tensioner with replaceable hanger mounting
Bottom Bracket
Square taper bottom bracket
Superlight headset
Brompton 4 speed trigger shifter
11-13-15-18 Tooth
Patent-pending direct mount 4 speed derailleur
Rear Wheel
Lightweight rim, double-butted spokes and aluminium hub body with sealed bearings, newly developed 4 speed freehub body and hex key axle
Front Wheel
Superlight 4 speed rear wheel
Schwalbe One Tanwall - Developed specifically for the CHPT3 bike with class leading grip, weight and rolling speed
Tubolito lightweight inner tubes (there may be 3 tubes packed in cases of bikes that did not come with the tubolitos installed by factory, but the correct number of spare tubes within the pouch should only be 1, not 3)
Not included
Not included
Not included
Not included
Dual Pivot Calipers
Front Carrier
Not included
Each bike comes with a limited-edition CHPT3 x Brompton Frame Pouch Bag, The frame pouch bag has been designed to fit securely inside the triangle on the bikes' mainframe and contains 1x Tubolito lightweight inner tube.
Frame Pouch details
Simple flap closure to the main compartment and secures via a Velcrostrap. Externally it features a grippy printed surface and Brompton logo; both in CHPT3 Fire Red.
Frame Pouch details
It’s made from a highly durable Hypalon material in a waterproof welded construction.

Reviews & Questions

Brompton x CHPT3 4th Edition

Shipping & Returns


Get free ground shipping on all orders over $50, sent by our trusted courier partner in 3-5 working days. Easy set up. Follow the Quick Start Guide to add your saddle and do some basic checks, and you’ll be ready to cycle away in less than 10 minutes from opening the box.


Brompton is committed to quality; if our products have failed you in any way, please return them and we will either exchange them or give you your money back. If the product is faulty or has arrived damaged, we will reimburse the cost of return postage. Unwanted items may be returned within 28 days at your cost.


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